Since this is a lease, do you think it makes sense to get the all-seasons now, run my winters this coming cold season, mount summers on the OEM wheels next spring and save the all-seasons for near lease turn-in?

that is what I am planning to do, only I am going with summer/summer. I figured we get cold winters about 1 every 5 years here in NVA with one heavy snowfall and for that I can hop on the X5 or ride the Metro. The way I drive I would need two sets of summer non-RFT and then I will slap on the OEM tires for turn in. I am probably not going to buy rims.